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common.attr

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+##/bin/sh
+
+#
+# Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
+# 
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+# 
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# 
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like.  Any license provided herein, whether implied or
+# otherwise, applies only to this software file.  Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+# 
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+# 
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA  94043, or:
+# 
+# http://www.sgi.com 
+# 
+# For further information regarding this notice, see: 
+# 
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+# common extended attribute and ACL support
+
+# pick three unused user/group ids, store them as $acl[1-3]
+#
+_acl_setup_ids()
+{
+    eval `cat /etc/passwd /etc/group | gawk -F: '
+      { ids[$3]=1 }
+      END {
+        j=1
+        for(i=1; i<1000000 && j<=3;i++){
+          if (! (i in ids)) {
+	     printf "acl%d=%d;", j, i;		 
+	     j++
+          }
+        }	
+      }'`
+}
+
+# filter for the acl ids selected above
+#
+_acl_filter_id()
+{
+    sed \
+       -e "s/u:$acl1/u:id1/" \
+       -e "s/u:$acl2/u:id2/" \
+       -e "s/u:$acl3/u:id3/" \
+       -e "s/g:$acl1/g:id1/" \
+       -e "s/g:$acl2/g:id2/" \
+       -e "s/g:$acl3/g:id3/" \
+       -e "s/ $acl1 / id1 /" \
+       -e "s/ $acl2 / id2 /" \
+       -e "s/ $acl3 / id3 /"
+}
+
+# filtered ls
+#
+_acl_ls()
+{
+    ls -ln $* | awk '{ print $1, $3, $4, $NF }' | _acl_filter_id
+} 
+
+# make sure this script returns success
+/bin/true